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3 years ago

What is the mass of 14.4 moles Fluorine? 0.379g 274.8 1.32 g 2.64g 547 g

Chemistry

2 answers:

liberstina [14]3 years ago

8 0

Answer:

Explanation: d

BartSMP [9]3 years ago

5 0

Answer:

547g

Hope i could help ;)

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Which type of bonding is characterized by overlapping orbitals that allow outer electrons of atoms to move about freely througho

Sonja [21]

Answer:

D metallic

Explanation:

The chemical bonding which rises from electrostatic attractive force between the conduction electrons and the positively charged metal ions is called metallic bonding.

It is sharing of the free electrons among the structure of the positively charged ions which are known as cations.

In this type of bonding, these free electrons freely move in the crystal mattice of the metal.

The bonding accounts for properties of metals, such as ductility, strength, electrical and thermal conductivity and resistivity and luster.

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3 years ago

How many hydrogen atoms are in 89.5 g of C6H6 ? Answer in units of atoms.

Elodia [21]

Solution :

Molar mass of $C_6H_6$ is :

M = 6×12 + 6×1 g

M = 78 g

78 gram of $C_6H_6$ contains $6.022 \times 10^{23}$ molecules.

So, 89.5 gram of $C_6H_6$ contains :

$n = 6.022 \times 10^{23} \times \dfrac{89.5}{78}\\\\n = 6.91 \times 10^{23}$

Now, from the formula we can see that one molecule of $C_6H_6$ contains 2 hydrogen atom . So, number of hydrogen atom are :

$h = 2\times 6.91 \times 10^{23}\\\\h = 1.38 \times 10^{22}\ atoms$

Hence, this is the required solution.

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2 years ago

Students are measuring the length of time it takes for soda to go flat at three different temperatures. Which type of graph shou

Akimi4 [234]

The answer would be a bar graph

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3 years ago

When the pressure that a gas exerts on a sealed container changes from 1100 bar to 75.5 bar, the temperature changes from k to 2

Serjik [45]

Gay-Lussac's law gives the relationship between pressure and temperature of gas. For a fixed amount of gas, pressure is directly proportional to temperature at constant volume.
P/T = k
where P - pressure , T - temperature and k - constant
$\frac{P1}{T1} = \frac{P2}{T2}$
parameters for the first instance are on the left side and parameters for the second instance are on the right side of the equation
substituting the values in the equation
$\frac{1100 bar}{T} = \frac{75.5 bar}{298 K}$
T = 4342 K
initial temperature was 4342 K

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3 years ago

In which of the following is the symbol for the ion and the number of electrons it contains given correctly?

tensa zangetsu [6.8K]

The answer is A. .....

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3 years ago